DIFFUSION TRANSFER MATERIAL

摘要

A photographic material for diffusion transfer photography containing a quinonoid compound, which is capable in reduced state and under alkaline conditions of releasing a dye moiety for the production of a dye image and corresponds to the following general formula (G): wherein: R8 is hydrogen or methyl in the 6- or 7-position (indicated by an asterisk) on the saturated adjacent ring part of the quinonoid nucleus, R9 is an alkyl group or a substituted alkyl group, an aromatic group or a substituted aromatic group, R10 is hydrogen, an alkyl group or an aryl group, and at least one of the substituents R9 and R10 represents or includes a ballasting group of sufficient size to render said compound immobile in an alkali-permeable hydrophilic colloid layer when such layer is permeated with an aqueous alkaline liquid.